<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>PositionFloat</title>

    <style>
        * {
            padding: 0;
            margin: 0;
        }

        .box {
            /*position: relative;*/
            float: left;
        }

        .content {
            padding: 10px;
            border: 1px solid #ccc;
            box-shadow: 0 0 5px #ccc;
            border-radius: 5px;
        }

        .content1 {
            width: 200px;
            height: 300px;

            padding: 10px;
            border: 1px solid #ccc;
            box-shadow: 0 0 5px #ccc;
            border-radius: 5px;
        }

        .content2 {
            width: 200px;
            height: 250px;

            padding: 10px;
            border: 1px solid #ccc;
            box-shadow: 0 0 5px #ccc;
            border-radius: 5px;
        }
    </style>
</head>
<body>

<div class="box" style="">
    <div class="content1">
    </div>
</div>

<div class="box">
    <div class="content2">
    </div>
</div>
<div class="box" style="">
    <div class="content1">
    </div>
</div>

<div class="box">
    <div class="content2">
    </div>
</div>

<div class="box" style="">
    <div class="content1">
    </div>
</div>

<div class="box">
    <div class="content2">
    </div>
</div>
<div class="box" style="">
    <div class="content1">
    </div>
</div>

<div class="box">
    <div class="content2">
    </div>
</div>

<div class="box" style="">
    <div class="content1">
    </div>
</div>

<div class="box">
    <div class="content2">
    </div>
</div>
<div class="box" style="">
    <div class="content1">
    </div>
</div>

<div class="box">
    <div class="content2">
    </div>
</div>

<div class="box" style="">
    <div class="content1">
    </div>
</div>

<div class="box">
    <div class="content2">
    </div>
</div>
<div class="box" style="">
    <div class="content1">
    </div>
</div>

<div class="box">
    <div class="content2">
    </div>
</div>

</body>
</html>